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Capsular tension ring prevented IOL decentration in study of eyes with traumatic zonular dialysis
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Implanting a capsular tension ring during cataract surgery in eyes with large traumatic zonular dialysis appears effective for preventing IOL decentration over the long term, according to a study by researchers in Greece.
Gerasimos Th. Georgopoulos, MD, and colleagues at Athens University evaluated outcomes in 17 eyes of 17 consecutive cataract patients. All eyes had a large traumatic zonular dialysis ranging in size from 80° to 160°.
In all cases, surgeons implanted a capsular tension ring before performing phacoemulsification and implantation of an acrylic foldable posterior chamber IOL, according to the study.
At 25.9 months mean follow-up, the researchers found that no eyes had experienced capsule collapse. In addition, all eyes had an improvement in best corrected visual acuity, except for one eye that had coexisting fundus pathology, the authors reported. Four eyes had experienced an elevation in IOP postoperatively that responded well to medical therapy, they noted.
"No IOL was found to be decentrated at the end of the follow-up period, apart from one eye in which the [posterior chamber] IOL was dislocated due to a postoperative trauma, in which an anterior chamber IOL was implanted," they said.
The study is published in the September issue of Acta Ophthalmologica Scandinavica.